BACKGROUND:Corticosteroids have long been a cornerstone of orthotopic liver transplant (OLTx) immunosuppression. Newer, more potent, agents have successfully allowed for more rapid tapering and discontinuation of corticosteroids in OLTx recipients. We hypothesize that corticosteroids can be safely avoided after the first postoperative day (POD) using these newer agents.

METHODS:Thirty adult OLTx recipients were prospectively enrolled in a randomized open-label, institutional review board-approved protocol. Fifteen patients (group A) received our standard regimen of tacrolimus, mycophenolate mofetil, and corticosteroids, and 15 patients (group B) received daclizumab, 2 mg/kg on POD 0 and 14, with tacrolimus, mycophenolate mofetil, and corticosteroids on POD 0 and 1 and then discontinuation. In both groups, mycophenolate mofetil was tapered off between 3 and 4 months after OLTx. Bone mineral densitometry was performed at 1, 3, and 6 months after OLTx. Quantitative hepatitis C virus (HCV) polymerase chain reaction was obtained at days 0, 7, 14, 21, and 28. Retransplant recipients, patients with autoimmune hepatitis, or status 1 or 2A patients were excluded.

RESULTS:Patient and graft survival rates were 93% (group A) and 100% (group B) with mean follow-up of 18 months. Patients in group B had more rejection diagnosed (25%) compared with group A (6.7%). Yet, the incidence of biopsy-proven acute rejection requiring steroid therapy was 6.7% in both groups. Hispanic race was common in groups A and B (87% and 74%). A total of six biopsies were performed in group B, with three patients having mild rejection responding to an increase in tacrolimus without the need for corticosteroids. One patient in group B was switched to cyclosporine for severe neurotoxicity and remains on monotherapy with normal graft function. No patient in either group developed a requirement for additional antihypertensive medication. Likewise, there were no patients with new-onset diabetes. The bone mineral densitometry was higher in group B at every time point but did not reach statistical significance. Serum cholesterol level was significantly (P=0.03) lower in group B at 6 months after OLTx. Serum triglycerides were also lower, but the difference was not significant. Quantitative polymerase chain reaction for HCV-positive patients (group A, n=7; group B, n=8) frequently increased after OLTx. There was no correlative decrease associated with daclizumab. At present, two patients in group A have documented HCV recurrence.

CONCLUSION:Corticosteroids can be safely avoided after POD 1 with the current regimen. With early follow-up, there is no difference in hypertension or diabetes or bone density. Lipid panels tended to be lower in patients who were not on corticosteroids. Longer term follow-up will be needed to demonstrate the potential advantage of corticosteroid avoidance in regard to hypertension, diabetes, and possibly HCV recurrence.

译文

背景 : 皮质类固醇长期以来一直是原位肝移植 (OLTx) 免疫抑制的基石。更新,更有效的药物已成功地使OLTx接受者的皮质类固醇激素更快速地逐渐减少和停用。我们假设使用这些新型药物可以在术后第一天 (POD) 安全避免使用皮质类固醇。
方法 : 30名成年OLTx接受者被前瞻性纳入了随机开放标签,机构审查委员会批准的方案。15例患者 (A组) 接受了他克莫司,霉酚酸酯和皮质类固醇的标准方案,15例患者 (B组) 在POD 0和14上接受了2 mg/kg的达珠单抗,在POD 0和1上接受他克莫司,霉酚酸酯和皮质类固醇,然后停用。在两组中,霉酚酸酯在OLTx后3至4个月之间逐渐减少。在OLTx后1、3和6个月进行骨矿物质密度测定。在第0、7、14、21和28天获得了定量的丙型肝炎病毒 (HCV) 聚合酶链反应。排除了再移植受者,自身免疫性肝炎患者或状态1或2A患者。
结果 : 患者和移植物存活率分别为93% (A组) 和100% (B组),平均随访18个月。与A组 (25%) 相比,B组患者的排斥反应更多 (6.7%)。然而,在两组中,经活检证实的需要类固醇治疗的急性排斥反应的发生率均6.7%。西班牙裔种族在A组和B组 (87% 和74%) 中很常见。B组共进行了6次活检,其中3例患者对他克莫司的增加有轻度排斥反应,而无需使用皮质类固醇。B组的一名患者因严重的神经毒性而改用环孢素,并继续接受移植功能正常的单药治疗。两组都没有患者需要额外的抗高血压药物。同样,也没有新发糖尿病患者。B组的骨矿物质密度在每个时间点均较高,但未达到统计学意义。在OLTx后6个月,B组的血清胆固醇水平显着降低 (P = 0.03)。血清甘油三酯也较低,但差异不显著。HCV阳性患者 (A组,n = 7; B组,n = 8) 的定量聚合酶链反应在OLTx后频繁增加。没有与达珠单抗相关的减少。目前,A组中有两名患者已记录了HCV复发。
结论 : 使用当前方案的POD 1后,可以安全地避免皮质类固醇。随着早期随访,高血压,糖尿病或骨密度没有差异。未使用皮质类固醇的患者的脂质组趋于降低。需要进行长期随访,以证明避免使用皮质类固醇激素在高血压,糖尿病和可能的HCV复发方面的潜在优势。

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